The cytoskeleton is a network of protein fibers within a cell that provides structure, support, and aids in cellular movement. It consists of microtubules, actin filaments, and intermediate filaments that help maintain cell shape and enable intracellular transport.
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Hollow tubes made of tubulin proteins that provide structural support and play roles in cell division and transport of materials within the cell.
Actin Filaments: Thin strands composed of actin protein that are involved in various forms of cellular movement including muscle contraction, cell division, and cell signaling.